Comparative study between standard and inside-out vein graft techniques on sciatic nerve repair of rats: muscular and functional analysis

Bueno, Cleuber Rodrigo de SouzaPereira, MizaelFavaretto-Júnior, Idvaldo AparecidoBuchaim, Rogerio LeoneAndreo, Jesus CarlosRodrigues, Antônio de CastroRosa-Júnior, Geraldo Marco

Purpose: To compare the functional result of standart vein grafts and inside-out vein graft technique on sciatic nerve repair. Methods: We used 24 male Wistar rats divided into 4 groups: control group (CG), standard vein graft group (SVG), Inside-out vein graft group (IOVG) and denervated Group (DG). SVG, IOVG and DG underwent total section of the sciatic nerve, SVG and IOVG however underwent nerve repair surgery using a graft with normal jugular vein and inside-out jugular vein, respectively. Histological analysis of the soleus and Extensor Digitorum Longus (EDL), and Sciatic Functional Index were used to compare the results after 6 weeks. Results: Both grafts acted favorably in muscle recovery and improved functionality; They were similar in all parameters, however, in more points SVG achieved similar to the CG, in the other hand IOVG more times was similar to DG. Fact that makes the graft with normal vein the most viable option between the two options. Conclusion: Both types of grafts acted beneficially wherein the graft normal vein has proved to be the best option.(AU)

1. Muscle, Skeletal
2. Peripheral Nerves
3. Rats
4. Sciatic Nerve
5. Nerve Regeneration